Telling mom he wants a divorce and that it is all her fault. Very vulgar accusations to mom and says he no longer loves her. He seems obsessed she is having an affair with her brother, yes, her brother. Mom is 86. He shot himself in the head, but the bullet deflected off his scull, he has stitches, but no damage that is reflected in CT scans. He is completely normal to the rest of the family. Why is he becoming obsessive and paranoid about mom only, has anyone seen behaviors like this? He takes pain meds for chronic back pain and also nerve medications. He is now starting antidepressants as well.